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N 'O'LI m Nm A RE Y 'No. 576,985. Patented Feb. 9, 1897.

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UNITED STATES PATENT OFFICE.

FREDERICK A. SCRANTON, OF EAST HAMPTON, CONNECTICUT, ASSIGNOR TO THEBEVIN BROTHERS MANUFACTURING COMPANY, OF SAME PLACE.

BICYCLE-BELL.

SPECIFICATION forming part of Letters Patent N 0. 576,985, datedFebruary 9, 1897.

7 Application filed October 27,1896 Serial No. 610,201. (No model.)

ism of simple construction that is positive in.

operation and is easily embodied in the small I sizes of bellsespecially adapted for use on bicycles, although the same mechanism isapplicable for bells of larger size.

The bell is of the class known as double stroke, and the inventionconsists in the details of the several parts making up the strikingmechanism as a whole and in the combination of the parts, as hereinafterdescribed,

and more particularly recited in the claims.

Referring to the drawings, Figure 1 is a plan view of the base-plate,showing the striking mechanism in one position. Fig. 2 is a plan view ofthe base-plate,showing the striking mechanism and with the hammer at theopposite limit of its play from that shown in 0 Fig. 1. Fig. 3 is anedge view of the bell with parts broken away to show the strikingmechanism in side elevation. Fig. 4. is a detail view in section of thebase-plate and showing an edge view of the striking mechanism in a 5plane at right angles to the plane of view of Fig. 3. Fig. 5. is a likeview, but showing the hammer at the opposite limit of its play.

In the accompanying drawings my'invention is-shown as embodied in abicycle-bell 0 provided with means for attachment to the handle-bar orlike part of a bicycle, and the letter a, denotes a base-plate having onthe under side a clamp b of ordinary and convenient form, the base-platebeing preferably 5 dished and with upturned edges to support and partlyinclose the mechanism. A central post 0 supports a gong 61, secured inplace by interengaging screw-threaded parts. A lever .e

is pivoted on a post f, fixed in the base-plate,

the outer end of the lever having a thumbpiece 6 and the inner endcurved so as to extend across the base-piece and engage at its inner endwith the spring-arm g of the hammer h. 'Near the edge of the base-plateand substantially diametrically opposite the post f, on which the leveris pivoted, is a fixed post i, on the upper end of which the hammer his. pivoted. This hammer is of a length which enables it to swing freelyclear of the central post cand through an arc of about ninety degrees.It has two striking-faces z" 2' and is loosely connected with one end ofthe spring g. A spiral spring g is coiled about the post 'i, and one endextending forward is turned upward through the hole h in the hammer,while the lower end of the spring extends forward and forms thespring-arm 9, one end of this arm being turned outward to form a stopwhich limits the swinging movement of the hammer and holds thestriking-face t" of the hammer in its normal position out of contactwith the inner surface of the gong.

The inner portion e of the lever e is formed of spring metal and isloosely connected to the spring-arm g, as by means of an oblong opening6 through which the spring-arm extends, and this spring-arm of the leverthrusts outward against the spring g and also in a direction tending tohold the hammer normally in the position shown in Fig. 1 of thedrawings. By pushing on the thumb-piece e the lever is moved so as toswing the hammer on its pivot until just past the central point, wherethe spring-arm, which has been put under increased tension, recoils andthrows the hammer sharply toward and against the gong. The spring-arm g,with which the end of the lever is loosely connected, encounters thestop-pin k, fixed on the base-plate and located so as to hold the strik-9o ing-face 2' of the hammer out of contact with the gong, except as theinertia of the swinging movement of the hammer coils the spring 9 andcauses the hammer to strike a rebounding blow upon the gong. As soon asthe pres- 5 sure on the thumb-piece of the lever is removed the recoilof the spring-arm throws the hammer sharply in the opposite directionuntil the end of the spring-arm strikes against the stop formed, in thisinstance, by the up- ICO turned edge of the base-plate and causes thehammer to strike with a rebounding blow against the gong.

The function of the spring g is to hold the striking-faces of the hammernormally out of contact with the gong and provide means for causing thehammer to strike the gong with a yielding or rebounding blow the impetusof the hammer as it is swung in either direction of its play beingthrown upon the spring in such manner as to yield in the desireddirection a degree su'fficient to sound a blow.

It is obvious that the construction herein described and shown may bevariously modilied and yet embody the invention, the main features ofthe invention residing in a springlever connected with a hammer torotate it in opposite directions and a spring connected with the hammerto control its swin ging movement.

I claim as my invention-- 1. In combination in a bell a base-plate, agong, a lever pivoted to the base-plate and having an inward-extendingcurved springarm, a spring 'rotarily mounted on a post and having alower spring-arm loosely connected with the spring-arm of the lover, apivoted swinging hammer connected with the upper spring-arm of thespring, and stops to limit the swinging movement'of the hammer.

2. In combination in a bell, a base-plate, a gong, a lever pivoted tothe base-plate and having an inward-extending curved springarm, a springrotarily mounted on a post and having a lower spring-arm looselyconnected with the spring-arm of the lever and an upper spring-armconnected with a hammer, the hammer pivoted on a post on which thespring is rotarily mounted, and stops to limit the swinging movement ofthe hammer.

3. In combination in a bell, a gong, a baseplate, a lever pivoted to thebase-plate and having an inward-extending curved springarm looselyconnected to the spring-arm of a swinging hammer, a swinging hammerpivoted on a post and connected to the upper spring-arm from the spring,the spring rotarily mounted on a post, and stops located in the path ofmovement of the lower arm of the spring to hold the hammer normally outof engagement with the gong. I

FREDERICK A. SORANTON. lVitnesses:

W. H. BEVIN, S. MILLs BEVIN.

